根据汉语提示，用词语的正确形式填空。

1. Mary and I learnt to skate all by ________ (自己).

2. If we see someone cutting in line, we may ________ (礼貌) ask him to join the line.

3. Because of the earthquake, we slept outside in the yard instead of ________ (待在) in the house.

4. I can't say what his ________ (计划) are.

5. In my opinion, the weather of Xichang in spring is too ________ (多风).